Heat spreader



FIG. 1 is a perspective view of a heat spreader depicting our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is an end view thereof;

FIG. 5 is an opposite end view thereof;

FIG. 6 is a side view thereof;

FIG. 7 is an opposite side view thereof; and,

FIG. 8 is an additional perspective view thereof.

The broken line portion of the figure drawings is included to show unclaimed subject matter only and forms no part of the claimed design. 

CLAIM The ornamental design for a heat spreader, as shown and described. 